> For the complete documentation index, see [llms.txt](https://help.sbtinstruments.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sbtinstruments.com/item-register/accessories/dilution-dispenser.md).

# Dilution dispenser

Bottletop dispenser for filling your own dilution vials from bulk liquid

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<figure><img src="https://4199970748-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAjOYV4v43T0TFlSRqgAp%2Fuploads%2Fgit-blob-d1056f162cd07cabf383483042521ffd4afdd846%2Fphoto--dilution-dispenser-packaging.png?alt=media" alt=""><figcaption><p>Dilution dispenser in its packaging</p></figcaption></figure>

<a href="mailto:sales@sbtinstruments.com" class="button primary" data-icon="envelope">Contact SBT to purchase</a>
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{% column %}
:label: Sales item `DD01`

:globe\_with\_meridians: Country of origin **Germany**

:label: HS code `9033.00.90`

:droplet: Dispenses **10 mL** per stroke

:tools: Bought once, kept

{% hint style="success" %}

### Always dispense through a syringe filter

[Replace the syringe filter](/item-register/accessories/dilution-dispenser/using-the-dilution-dispenser/replace-syringe-filter.md) at the start of each operating day, then [test your dilution liquid](/more/how-to-guides/test-your-dilution-liquid.md).
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<table><thead><tr><th width="100">Item no.</th><th width="300">Item</th><th>Details</th></tr></thead><tbody><tr><td><code>DD01</code></td><td>Dilution dispenser</td><td><mark style="color:$info;">Hirschmann Ceramus Fix 10 mL incl. discharge unit. Bottletop dispenser used for dispensing bulk dilution liquid (DB01). We cut the tubing to fit our liquid and assemble the parts for you, which avoids common mistakes.</mark></td></tr></tbody></table>

{% content-ref url="/pages/uTgQyL0K2VFhyGIr5Q7g" %}
[Using the dilution dispenser](/item-register/accessories/dilution-dispenser/using-the-dilution-dispenser.md)
{% endcontent-ref %}

## What else you need

<table><thead><tr><th width="100">Item no.</th><th width="300">Item</th><th>How often</th></tr></thead><tbody><tr><td><code>DB01</code></td><td><a href="/item-register/consumables/dilution-liquid-bulk.md">Dilution liquid: bulk (500× dilutions)</a></td><td>The liquid you dispense</td></tr><tr><td><code>SF01</code></td><td><a href="/item-register/consumables/syringe-filter.md">Syringe filter for dilution dispenser (40×)</a></td><td>One change per operating day</td></tr></tbody></table>

{% hint style="warning" %}
**Bulk liquid is not sterile**

The 5 L container is not sterile. The syringe filter sterile-filters the liquid as it leaves the dispenser, so never dispense without one.
{% endhint %}

{% hint style="warning" %}
**Do not store filled vials**

Fill only the vials you are about to use. A filled vial must not be kept overnight, because growth develops in it and skews your result.

Cold storage is not a fix. It may slow the growth, but it also takes the conductivity outside the range BactoBox® needs, and the measurement fails.
{% endhint %}

## Gallery

<figure><img src="https://4199970748-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FAjOYV4v43T0TFlSRqgAp%2Fuploads%2Fgit-blob-868700e8c3a54b923e1e597c2fbb12b2d4d295c2%2FUsing_dilution_dispenser.avif?alt=media" alt="" width="375"><figcaption><p>How to fill a dilution vial with the dilution dispenser</p></figcaption></figure>


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